Real Estate and Accumulated Depreciation - Schedule of Properties (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 677,893
Initial Cost to Company
Land and Improvements	817,375
Buildings and Improvements	5,038,164
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	59,938
Building and Improvements less Cost of Sales, Transfers and Other	1,469,753
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	877,313
Building and Improvements less Cost of Sales, Transfers and Other	6,507,917
Total	7,385,230	$ 7,158,069	$ 4,121,286	$ 3,893,799
Accumulated Depreciation	811,196	$ 621,617	$ 421,495	$ 275,977
OPERATING PROPERTIES
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	677,893
Initial Cost to Company
Land and Improvements	605,197
Buildings and Improvements	4,948,060
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	64,464
Building and Improvements less Cost of Sales, Transfers and Other	1,417,898
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	669,661
Building and Improvements less Cost of Sales, Transfers and Other	6,365,958
Total	7,035,619
Accumulated Depreciation	803,073
OPERATING PROPERTIES | Atlanta, GA | Terminus
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	189,352
Initial Cost to Company
Land and Improvements	49,050
Buildings and Improvements	410,826
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	23,451
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	49,050
Building and Improvements less Cost of Sales, Transfers and Other	434,277
Total	483,327
Accumulated Depreciation	$ 19,471
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Atlanta, GA | Northpark Town Center
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	22,350
Buildings and Improvements	295,825
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	77,198
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	22,350
Building and Improvements less Cost of Sales, Transfers and Other	373,023
Total	395,373
Accumulated Depreciation	$ 85,760
Life on Which Depreciation in 2016 Statement of Operations is Computed	39 years
OPERATING PROPERTIES | Atlanta, GA | Spring & 8th
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	28,131
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	426
Building and Improvements less Cost of Sales, Transfers and Other	301,774
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	28,557
Building and Improvements less Cost of Sales, Transfers and Other	301,774
Total	330,331
Accumulated Depreciation	$ 29,922
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Atlanta, GA | Buckhead Plaza
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	35,064
Buildings and Improvements	234,111
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	23,652
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	35,064
Building and Improvements less Cost of Sales, Transfers and Other	257,763
Total	292,827
Accumulated Depreciation	$ 38,761
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Atlanta, GA | 3344 Peachtree
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	16,110
Buildings and Improvements	176,153
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	29,835
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	16,110
Building and Improvements less Cost of Sales, Transfers and Other	205,988
Total	222,098
Accumulated Depreciation	$ 29,947
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Atlanta, GA | Avalon
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	9,952
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	73
Building and Improvements less Cost of Sales, Transfers and Other	168,102
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	10,025
Building and Improvements less Cost of Sales, Transfers and Other	168,102
Total	178,127
Accumulated Depreciation	$ 13,323
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Atlanta, GA | Promenade
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 92,593
Initial Cost to Company
Land and Improvements	13,439
Buildings and Improvements	102,790
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	51,239
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	13,439
Building and Improvements less Cost of Sales, Transfers and Other	154,029
Total	167,468
Accumulated Depreciation	$ 62,724
Life on Which Depreciation in 2016 Statement of Operations is Computed	34 years
OPERATING PROPERTIES | Atlanta, GA | 3350 Peachtree
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	16,836
Buildings and Improvements	108,177
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	11,450
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	16,836
Building and Improvements less Cost of Sales, Transfers and Other	119,627
Total	136,463
Accumulated Depreciation	$ 18,294
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Atlanta, GA | 1200 Peachtree
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	19,495
Buildings and Improvements	62,836
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	(1)
Building and Improvements less Cost of Sales, Transfers and Other	977
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	19,494
Building and Improvements less Cost of Sales, Transfers and Other	63,813
Total	83,307
Accumulated Depreciation	$ 2,934
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Atlanta, GA | 3348 Peachtree
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	6,707
Buildings and Improvements	69,723
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	2,884
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	6,707
Building and Improvements less Cost of Sales, Transfers and Other	72,607
Total	79,314
Accumulated Depreciation	$ 12,540
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Atlanta, GA | Meridian Mark Plaza
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	2,219
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	31,698
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	2,219
Building and Improvements less Cost of Sales, Transfers and Other	31,698
Total	33,917
Accumulated Depreciation	$ 22,979
Life on Which Depreciation in 2016 Statement of Operations is Computed	30 years
OPERATING PROPERTIES | Tampa, FL | Corporate Center
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	2,468
Buildings and Improvements	272,148
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	17,282
Building and Improvements less Cost of Sales, Transfers and Other	64,426
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	19,750
Building and Improvements less Cost of Sales, Transfers and Other	336,574
Total	356,324
Accumulated Depreciation	$ 51,978
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Tampa, FL | The Pointe
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	9,404
Buildings and Improvements	54,694
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	8,360
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	9,404
Building and Improvements less Cost of Sales, Transfers and Other	63,054
Total	72,458
Accumulated Depreciation	$ 11,631
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Tampa, FL | Harborview Plaza
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	10,800
Buildings and Improvements	39,136
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	10,175
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	10,800
Building and Improvements less Cost of Sales, Transfers and Other	49,311
Total	60,111
Accumulated Depreciation	$ 7,487
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Austin, TX | The Domain
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	65,236
Buildings and Improvements	755,143
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	6,008
Building and Improvements less Cost of Sales, Transfers and Other	230,349
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	71,244
Building and Improvements less Cost of Sales, Transfers and Other	985,492
Total	1,056,736
Accumulated Depreciation	$ 35,842
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Austin, TX | The Terrace
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	27,360
Buildings and Improvements	247,226
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	7,558
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	27,360
Building and Improvements less Cost of Sales, Transfers and Other	254,784
Total	282,144
Accumulated Depreciation	$ 14,028
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Austin, TX | One Eleven Congress
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	33,841
Buildings and Improvements	201,707
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	47,221
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	33,841
Building and Improvements less Cost of Sales, Transfers and Other	248,928
Total	282,769
Accumulated Depreciation	$ 34,609
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Austin, TX | San Jacinto Center
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	34,068
Buildings and Improvements	176,535
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	(579)
Building and Improvements less Cost of Sales, Transfers and Other	18,908
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	33,489
Building and Improvements less Cost of Sales, Transfers and Other	195,443
Total	228,932
Accumulated Depreciation	$ 27,446
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Austin, TX | Colorado Tower
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 114,659
Initial Cost to Company
Land and Improvements	1,600
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	20,592
Building and Improvements less Cost of Sales, Transfers and Other	127,434
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	22,192
Building and Improvements less Cost of Sales, Transfers and Other	127,434
Total	149,626
Accumulated Depreciation	$ 41,443
Life on Which Depreciation in 2016 Statement of Operations is Computed	30 years
OPERATING PROPERTIES | Austin, TX | 816 Congress
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 78,232
Initial Cost to Company
Land and Improvements	6,817
Buildings and Improvements	89,891
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	20,625
Building and Improvements less Cost of Sales, Transfers and Other	31,626
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	27,442
Building and Improvements less Cost of Sales, Transfers and Other	121,517
Total	148,959
Accumulated Depreciation	$ 35,373
Life on Which Depreciation in 2016 Statement of Operations is Computed	42 years
OPERATING PROPERTIES | Austin, TX | Domain Point
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	17,349
Buildings and Improvements	71,599
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	4,949
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	17,349
Building and Improvements less Cost of Sales, Transfers and Other	76,548
Total	93,897
Accumulated Depreciation	$ 4,580
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Austin, TX | Research Park V
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	4,373
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	801
Building and Improvements less Cost of Sales, Transfers and Other	42,393
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	5,174
Building and Improvements less Cost of Sales, Transfers and Other	42,393
Total	47,567
Accumulated Depreciation	$ 10,300
Life on Which Depreciation in 2016 Statement of Operations is Computed	30 years
OPERATING PROPERTIES | Phoenix, AZ | Hayden Ferry
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	13,102
Buildings and Improvements	262,578
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	(252)
Building and Improvements less Cost of Sales, Transfers and Other	26,676
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	12,850
Building and Improvements less Cost of Sales, Transfers and Other	289,254
Total	302,104
Accumulated Depreciation	$ 49,929
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Phoenix, AZ | Tempe Gateway
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	5,893
Buildings and Improvements	95,130
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	6,912
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	5,893
Building and Improvements less Cost of Sales, Transfers and Other	102,042
Total	107,935
Accumulated Depreciation	$ 15,867
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Phoenix, AZ | 111 West Rio
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	6,076
Buildings and Improvements	56,647
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	(127)
Building and Improvements less Cost of Sales, Transfers and Other	17,761
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	5,949
Building and Improvements less Cost of Sales, Transfers and Other	74,408
Total	80,357
Accumulated Depreciation	$ 10,478
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Charlotte, NC | One South at The Plaza (fka Bank of America Plaza)
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	32,091
Buildings and Improvements	229,840
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	(417)
Building and Improvements less Cost of Sales, Transfers and Other	8,620
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	31,674
Building and Improvements less Cost of Sales, Transfers and Other	238,460
Total	270,134
Accumulated Depreciation	$ 21,849
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Charlotte, NC | Fifth Third Center
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 137,057
Initial Cost to Company
Land and Improvements	22,591
Buildings and Improvements	180,430
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	27,122
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	22,591
Building and Improvements less Cost of Sales, Transfers and Other	207,552
Total	230,143
Accumulated Depreciation	$ 47,212
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Charlotte, NC | The RailYard
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	22,831
Buildings and Improvements	178,323
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	44
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	22,831
Building and Improvements less Cost of Sales, Transfers and Other	178,367
Total	201,198
Accumulated Depreciation	$ 391
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Charlotte, NC | NASCAR Plaza
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	51
Buildings and Improvements	115,238
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	7,505
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	51
Building and Improvements less Cost of Sales, Transfers and Other	122,743
Total	122,794
Accumulated Depreciation	$ 19,656
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Charlotte, NC | BBT Parking Garage
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	15,318
Buildings and Improvements	69,780
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	33
Building and Improvements less Cost of Sales, Transfers and Other	1,007
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	15,351
Building and Improvements less Cost of Sales, Transfers and Other	70,787
Total	86,138
Accumulated Depreciation	$ 1,166
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Houston, TX | Briarlake Plaza
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	33,486
Buildings and Improvements	196,915
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	4,250
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	33,486
Building and Improvements less Cost of Sales, Transfers and Other	201,165
Total	234,651
Accumulated Depreciation	$ 13,126
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Dallas, GA | Legacy Union One
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 66,000
Initial Cost to Company
Land and Improvements	13,049
Buildings and Improvements	128,740
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	59
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	13,049
Building and Improvements less Cost of Sales, Transfers and Other	128,799
Total	141,848
Accumulated Depreciation	$ 7,576
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
OPERATING PROPERTIES | Dallas, GA | 5950 Sherry Lane
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	8,040
Buildings and Improvements	65,919
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	2,283
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	8,040
Building and Improvements less Cost of Sales, Transfers and Other	68,202
Total	76,242
Accumulated Depreciation	$ 4,451
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
HELD FOR SALE
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	32,656
Buildings and Improvements	90,104
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	(566)
Building and Improvements less Cost of Sales, Transfers and Other	7,622
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	32,090
Building and Improvements less Cost of Sales, Transfers and Other	97,726
Total	129,816
Accumulated Depreciation	8,123
HELD FOR SALE | Fort Worth, TX | Burnett Plaza
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land and Improvements	32,656
Buildings and Improvements	90,104
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	(566)
Building and Improvements less Cost of Sales, Transfers and Other	7,622
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	32,090
Building and Improvements less Cost of Sales, Transfers and Other	97,726
Total	129,816
Accumulated Depreciation	$ 8,123
Life on Which Depreciation in 2016 Statement of Operations is Computed	40 years
PROJECTS UNDER DEVELOPMENT
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Initial Cost to Company
Land and Improvements	13,156
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	44,233
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	13,156
Building and Improvements less Cost of Sales, Transfers and Other	44,233
Total	57,389
Accumulated Depreciation	0
PROJECTS UNDER DEVELOPMENT | Phoenix, AZ | 100 Mill
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land and Improvements	13,156
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	44,233
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	13,156
Building and Improvements less Cost of Sales, Transfers and Other	44,233
Total	57,389
Accumulated Depreciation	0
LAND
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land and Improvements	166,366
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	(3,960)
Building and Improvements less Cost of Sales, Transfers and Other	0
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	162,406
Building and Improvements less Cost of Sales, Transfers and Other	0
Total	162,406
Accumulated Depreciation	0
LAND | Corporate Center 5
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land and Improvements	5,188
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	(4)
Building and Improvements less Cost of Sales, Transfers and Other	0
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	5,184
Building and Improvements less Cost of Sales, Transfers and Other	0
Total	5,184
Accumulated Depreciation	0
LAND | Atlanta, GA | 901 West Peachtree
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land and Improvements	11,883
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	3,584
Building and Improvements less Cost of Sales, Transfers and Other	0
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	15,467
Building and Improvements less Cost of Sales, Transfers and Other	0
Total	15,467
Accumulated Depreciation	0
LAND | Atlanta, GA | 3354 Peachtree
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land and Improvements	13,410
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	0
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	13,410
Building and Improvements less Cost of Sales, Transfers and Other	0
Total	13,410
Accumulated Depreciation	0
LAND | Austin, TX | Domain 14 & 15
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land and Improvements	21,000
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	0
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	21,000
Building and Improvements less Cost of Sales, Transfers and Other	0
Total	21,000
Accumulated Depreciation	0
LAND | Austin, TX | Domain 9
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land and Improvements	16,640
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	0
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	16,640
Building and Improvements less Cost of Sales, Transfers and Other	0
Total	16,640
Accumulated Depreciation	0
LAND | Austin, TX | Domain Point 3
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land and Improvements	11,018
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	0
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	11,018
Building and Improvements less Cost of Sales, Transfers and Other	0
Total	11,018
Accumulated Depreciation	0
LAND | Phoenix, AZ | 100 Mill - Adjacent Land
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land and Improvements	6,350
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	0
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	6,350
Building and Improvements less Cost of Sales, Transfers and Other	0
Total	6,350
Accumulated Depreciation	0
LAND | Charlotte, NC | South End Station
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land and Improvements	28,134
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	0
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	28,134
Building and Improvements less Cost of Sales, Transfers and Other	0
Total	28,134
Accumulated Depreciation	0
LAND | Charlotte, NC | 303 Tremont
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land and Improvements	18,779
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	0
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	18,779
Building and Improvements less Cost of Sales, Transfers and Other	0
Total	18,779
Accumulated Depreciation	0
LAND | Dallas, GA | Legacy Union 2 & 3
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land and Improvements	22,724
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	0
Building and Improvements less Cost of Sales, Transfers and Other	0
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	22,724
Building and Improvements less Cost of Sales, Transfers and Other	0
Total	22,724
Accumulated Depreciation	0
LAND | Suburban Atlanta, GA | The Avenue Forsyth -Adjacent Land
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land and Improvements	11,240
Buildings and Improvements	0
Costs Capitalized Subsequent to Acquisition
Land and Improvements less Cost of Sales, Transfers and Other	(7,540)
Building and Improvements less Cost of Sales, Transfers and Other	0
Gross Amount at Which Carried  at Close of Period
Land and Improvements less Cost of Sales, Transfers and Other	3,700
Building and Improvements less Cost of Sales, Transfers and Other	0
Total	3,700
Accumulated Depreciation	$ 0